Renthal Rear Sprocket 40 Tooth Silver on 2040-parts.com

EBay exotic: 1980 BMW M1

What we have here, according to the seller, is an actual one-owner, 4,418-kilometer (2,739 miles) BMW M1, recently imported to the United States from Germany. That's right--the original BMW supercar, one of 456 reportedly built. While the 277-hp straight-six may not sound too impressive today, keep in mind that the European Ferrari 308 only made about 250 hp at the time.

Toyota says software glitch in data boxes can give faulty speed readings

A top Toyota executive says the crash data boxes in its vehicles are reliable but a bug in the software that reads the information can provide inaccurate vehicle speeds. The disclosure comes as the National Highway Transportation Safety Administration continues its investigation into unintended acceleration of Toyota models. “Toyota has acknowledged previously that the event data recorders are not accurate,” said Takeshi Uchiyamada, executive vice president in charge of research and development.

911 GT3 recall update: Porsche reportedly replacing all engines

Porsche recalled all 785 2014 GT3s on the road last month for an unexplained problem that could cause the engine to catch fire. The company told owners to stop driving the cars immediately. Two vehicles in Europe caught fire after engine damage occurred.